Journal of Insect Conservation

, Volume 21, Issue 2, pp 357–366

Distribution patterns of the cold adapted bumblebee Bombus alpinus in the Alps and hints of an uphill shift (Insecta: Hymenoptera: Apidae)

  • Paolo Biella
  • Giuseppe Bogliani
  • Maurizio Cornalba
  • Aulo Manino
  • Johann Neumayer
  • Marco Porporato
  • Pierre Rasmont
  • Pietro Milanesi
ORIGINAL PAPER

DOI: 10.1007/s10841-017-9983-1

Cite this article as:
Biella, P., Bogliani, G., Cornalba, M. et al. J Insect Conserv (2017) 21: 357. doi:10.1007/s10841-017-9983-1

Abstract

Climate change is threatening species and habitats. Altitudinal shifts uphill and negative population trends are commonly observed in altitude-related taxa. The bumblebee Bombus alpinus (Linnaeus, 1758) has a disjoint distribution restricted to Fennoscandia and the Alps, and is considered threatened. We studied the ecology and distribution of B. alpinus in the Alps, where the endemic subspecies Bombus alpinus helleri Dalla Torre 1882 is found, as a case-model because of its rarity, habitat, and mutual dependence with the ecosystem for pollination and resources. We developed species distribution models including both climatic and habitat variables to obtain the surface suitable for this subspecies and quantified its protected portion. Our analyses indicate that this bumblebee is restricted to the upper altitudes and has a narrow niche mainly related to the presence of glaciers, the cool temperature, a low temperature variation, and a specific range of precipitation. A strong altitudinal shift is also taking place probably due to climate change. After years of no changes in altitudinal distribution, its lowest altitudinal limit has moved up 479 m since the year 1984, while its upper altitudinal limit has remained unchanged. Over half of the suitable area in the Alps is included within protected areas, but conservation has not been planned yet. However, rare species with narrow niche, such as B. alpinus, are highly threatened by climate change. Potential short-term mitigation actions are discussed, including exchange of males between locations and integral protection of prairies in the vicinity of glaciers.

Keywords

Climate change Specialist Rare species Species distribution modelling Altitudinal shift Conservation 

Supplementary material

10841_2017_9983_MOESM1_ESM.pdf (18 kb)
Supplementary material 1 (PDF 17 KB)
10841_2017_9983_MOESM2_ESM.docx (218 kb)
Supplementary material 2 (DOCX 217 KB)

Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  1. 1.Department of Zoology, Faculty of ScienceUniversity of South BohemiaČeské BudějoviceCzech Republic
  2. 2.Biology Centre of the Academy of Sciences of the Czech Republic, v.v.i.Institute of EntomologyČeské BudějoviceCzech Republic
  3. 3.Department of Earth and Environmental SciencesUniversity of PaviaPaviaItaly
  4. 4.Department of MathematicsUniversity of PaviaPaviaItaly
  5. 5.Department of Agricultural, Forest and Food Sciences (DISAFA)University of TorinoGrugliascoItaly
  6. 6.ElixhausenAustria
  7. 7.Laboratory of Zoology, Research Institute of BiosciencesUniversity of MonsMonsBelgium
  8. 8.Swiss Ornithological InstituteSempachSwitzerland

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